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authorMichal Kalderon <Michal.Kalderon@cavium.com>2017-06-09 17:13:22 +0300
committerDavid S. Miller <davem@davemloft.net>2017-06-09 15:49:02 -0400
commit0518c12f1f79dc2f2020836974c577404e42ae89 (patch)
treea8efb6dd750ff4ae9c8791f5249924984bd2713b /include/linux/qed
parent58de289807f02122ef7eca96e50365d2c1440902 (diff)
qed*: LL2 callback operations
LL2 today is interrupt driven - when tx/rx completion arrives [or any other indication], qed needs to operate on the connection and pass the information to the protocol-driver [or internal qed consumer]. Since we have several flavors of ll2 employeed by the driver, each handler needs to do an if-else to determine the right functionality to use based on the connection type. In order to make things more scalable [given that we're going to add additional types of ll2 flavors] move the infrastrucutre into using a callback-based approach - the callbacks would be provided as part of the connection's initialization parameters. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/qed')
-rw-r--r--include/linux/qed/qed_ll2_if.h36
-rw-r--r--include/linux/qed/qed_roce_if.h80
2 files changed, 64 insertions, 52 deletions
diff --git a/include/linux/qed/qed_ll2_if.h b/include/linux/qed/qed_ll2_if.h
index a1f63eca430a..5958b45eb699 100644
--- a/include/linux/qed/qed_ll2_if.h
+++ b/include/linux/qed/qed_ll2_if.h
@@ -122,6 +122,40 @@ struct qed_ll2_comp_rx_data {
} u;
};
+typedef
+void (*qed_ll2_complete_rx_packet_cb)(void *cxt,
+ struct qed_ll2_comp_rx_data *data);
+
+typedef
+void (*qed_ll2_release_rx_packet_cb)(void *cxt,
+ u8 connection_handle,
+ void *cookie,
+ dma_addr_t rx_buf_addr,
+ bool b_last_packet);
+
+typedef
+void (*qed_ll2_complete_tx_packet_cb)(void *cxt,
+ u8 connection_handle,
+ void *cookie,
+ dma_addr_t first_frag_addr,
+ bool b_last_fragment,
+ bool b_last_packet);
+
+typedef
+void (*qed_ll2_release_tx_packet_cb)(void *cxt,
+ u8 connection_handle,
+ void *cookie,
+ dma_addr_t first_frag_addr,
+ bool b_last_fragment, bool b_last_packet);
+
+struct qed_ll2_cbs {
+ qed_ll2_complete_rx_packet_cb rx_comp_cb;
+ qed_ll2_release_rx_packet_cb rx_release_cb;
+ qed_ll2_complete_tx_packet_cb tx_comp_cb;
+ qed_ll2_release_tx_packet_cb tx_release_cb;
+ void *cookie;
+};
+
struct qed_ll2_acquire_data_inputs {
enum qed_ll2_conn_type conn_type;
u16 mtu;
@@ -140,6 +174,8 @@ struct qed_ll2_acquire_data_inputs {
struct qed_ll2_acquire_data {
struct qed_ll2_acquire_data_inputs input;
+ const struct qed_ll2_cbs *cbs;
+
/* Output container for LL2 connection's handle */
u8 *p_connection_handle;
};
diff --git a/include/linux/qed/qed_roce_if.h b/include/linux/qed/qed_roce_if.h
index cbb2ff0ce4bc..8e70f5ee05af 100644
--- a/include/linux/qed/qed_roce_if.h
+++ b/include/linux/qed/qed_roce_if.h
@@ -34,8 +34,6 @@
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/qed/qed_if.h>
#include <linux/qed/qed_ll2_if.h>
@@ -491,42 +489,6 @@ struct qed_roce_ll2_packet {
enum qed_roce_ll2_tx_dest tx_dest;
};
-struct qed_roce_ll2_tx_params {
- int reserved;
-};
-
-struct qed_roce_ll2_rx_params {
- u16 vlan_id;
- u8 smac[ETH_ALEN];
- int rc;
-};
-
-struct qed_roce_ll2_cbs {
- void (*tx_cb)(void *pdev, struct qed_roce_ll2_packet *pkt);
-
- void (*rx_cb)(void *pdev, struct qed_roce_ll2_packet *pkt,
- struct qed_roce_ll2_rx_params *params);
-};
-
-struct qed_roce_ll2_params {
- u16 max_rx_buffers;
- u16 max_tx_buffers;
- u16 mtu;
- u8 mac_address[ETH_ALEN];
- struct qed_roce_ll2_cbs cbs;
- void *cb_cookie;
-};
-
-struct qed_roce_ll2_info {
- u8 handle;
- struct qed_roce_ll2_cbs cbs;
- u8 mac_address[ETH_ALEN];
- void *cb_cookie;
-
- /* Lock to protect ll2 */
- struct mutex lock;
-};
-
enum qed_rdma_type {
QED_RDMA_TYPE_ROCE,
};
@@ -579,26 +541,40 @@ struct qed_rdma_ops {
int (*rdma_query_qp)(void *rdma_cxt, struct qed_rdma_qp *qp,
struct qed_rdma_query_qp_out_params *oparams);
int (*rdma_destroy_qp)(void *rdma_cxt, struct qed_rdma_qp *qp);
+
int
(*rdma_register_tid)(void *rdma_cxt,
struct qed_rdma_register_tid_in_params *iparams);
+
int (*rdma_deregister_tid)(void *rdma_cxt, u32 itid);
int (*rdma_alloc_tid)(void *rdma_cxt, u32 *itid);
void (*rdma_free_tid)(void *rdma_cxt, u32 itid);
- int (*roce_ll2_start)(struct qed_dev *cdev,
- struct qed_roce_ll2_params *params);
- int (*roce_ll2_stop)(struct qed_dev *cdev);
- int (*roce_ll2_tx)(struct qed_dev *cdev,
- struct qed_roce_ll2_packet *packet,
- struct qed_roce_ll2_tx_params *params);
- int (*roce_ll2_post_rx_buffer)(struct qed_dev *cdev,
- struct qed_roce_ll2_buffer *buf,
- u64 cookie, u8 notify_fw);
- int (*roce_ll2_set_mac_filter)(struct qed_dev *cdev,
- u8 *old_mac_address,
- u8 *new_mac_address);
- int (*roce_ll2_stats)(struct qed_dev *cdev,
- struct qed_ll2_stats *stats);
+
+ int (*ll2_acquire_connection)(void *rdma_cxt,
+ struct qed_ll2_acquire_data *data);
+
+ int (*ll2_establish_connection)(void *rdma_cxt, u8 connection_handle);
+ int (*ll2_terminate_connection)(void *rdma_cxt, u8 connection_handle);
+ void (*ll2_release_connection)(void *rdma_cxt, u8 connection_handle);
+
+ int (*ll2_prepare_tx_packet)(void *rdma_cxt,
+ u8 connection_handle,
+ struct qed_ll2_tx_pkt_info *pkt,
+ bool notify_fw);
+
+ int (*ll2_set_fragment_of_tx_packet)(void *rdma_cxt,
+ u8 connection_handle,
+ dma_addr_t addr,
+ u16 nbytes);
+ int (*ll2_post_rx_buffer)(void *rdma_cxt, u8 connection_handle,
+ dma_addr_t addr, u16 buf_len, void *cookie,
+ u8 notify_fw);
+ int (*ll2_get_stats)(void *rdma_cxt,
+ u8 connection_handle,
+ struct qed_ll2_stats *p_stats);
+ int (*ll2_set_mac_filter)(struct qed_dev *cdev,
+ u8 *old_mac_address, u8 *new_mac_address);
+
};
const struct qed_rdma_ops *qed_get_rdma_ops(void);